Standard IEC standard · IEC 60990:2016

Methods of measurement of touch current and protective conductor current

Status: Valid

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Standard IEC standard · IEC 60990:2016

Methods of measurement of touch current and protective conductor current
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Scope
IEC 60990:2016 is available as IEC 60990:2016 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60990:2016 defines measurement methods for d.c. or a.c. current of sinusoidal or non-sinusoidal waveform, which could flow through the human body, and current flowing through a protective conductor. The measuring methods recommended for TOUCH CURRENT are based upon the possible effects of current flowing through a human body. In this standard, measurements of current through networks representing the impedance of the human body are referred to as measurements of TOUCH CURRENT. These networks are not necessarily valid for the bodies of animals. The specification or implication of specific limit values is not within the scope of this standard. IEC TS 60479 series provides information regarding the effects of current passing through the human body from which limit values may be derived. This standard is applicable to all classes of EQUIPMENT, according to IEC 61140. The methods of measurement in this standard are not intended to be used for TOUCH CURRENTS having less than 1 s duration, patient currents as defined in IEC 60601-1, a.c. at frequencies below 15 Hz, and currents above those chosen for ELECTRIC BURN limits. This third edition cancels and replaces the second edition published in 1999. It constitutes a technical revision. The principal changes in this edition as compared with the second edition are as follows: - the effects names have been updated to reflect increased understanding of the range of effects and is in concert with present usage; - the conditions of use invoking a GRIPPABLE PART have been reduced in the application of the requirements based upon the current understanding of this effect; - the references to ISO 10012-1, which has been...

Subjects

Electricity. Magnetism. electrical and magnetic measurements (17.220) Other (17.220.99) General (35.020)


Buy this standard

Standard IEC standard · IEC 60990:2016

Methods of measurement of touch current and protective conductor current
Subscribe on standards - Read more Dölj
Price: 4 745 SEK
standard ikon pdf

PDF

Price: 4 745 SEK
standard ikon

Paper

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Product information

Language: English French

Written by: IEC

International title:

Article no: STD-8020786

Edition: 3

Approved: 5/30/2016

No of pages: 124

Replaces: IEC 60990:1999